Preparation method of mobile phone rear cover and mobile phone rear cover
By integrating the antenna layer into the back cover of the phone and wrapping the antenna edges with fiber resin material, the problems of insufficient antenna space and electromagnetic interference are solved, thereby improving signal stability and drop resistance.
CN121716348APending Publication Date: 2026-03-24SHENZHEN SUNWAY COMM
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-24
- Publication Date
- 2026-03-24
AI Technical Summary
Technical Problem
Insufficient space for internal antennas in mobile phones and susceptibility to electromagnetic interference can affect signal transmission quality and communication stability.
Method used
During the manufacturing process of the mobile phone back cover, the antenna layer is placed between the prepreg sheets and then thermo-pressed to form an integrated structure with the back cover. The antenna edge is wrapped with a prepreg sheet made of a mixture of fiber and resin materials to reduce electromagnetic interference and improve signal stability.
Benefits of technology
It effectively saves internal space in mobile phones, reduces signal attenuation and dropped calls, improves signal reception and transmission efficiency, and enhances antenna stability and drop resistance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN121716348A_ABST
Abstract
The invention discloses a preparation method of a mobile phone rear cover, which comprises the following steps: providing a first prepreg, a second prepreg and an antenna layer, arranging the antenna layer between the first prepreg and the second prepreg, and carrying out hot press molding to obtain the mobile phone rear cover. Wherein the antenna layer comprises a base material and an antenna, in the thickness direction of the antenna layer, the base material comprises a first surface facing the first prepreg and a second surface facing the second prepreg, and the antenna is placed on the first surface and / or the second surface of the base material; the first prepreg and / or the second prepreg are / is formed by mixing a fiber material and a resin material. The mobile phone rear cover can reduce the shielding of structures such as the metal middle frame to signals, improve the signal receiving and transmitting efficiency, improve the communication quality of the mobile phone, and reduce the problems of signal attenuation and disconnection. The area of the rear cover can be fully utilized, the occupation of the limited space in the mobile phone is reduced, more arrangement space is provided for other components, and the light and thin design of the whole mobile phone is facilitated.
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